Diaphragm pump



FIG. 1 is a top perspective view of a diaphragm pump according to some embodiments of the present invention;

FIG. 2 is a side view of the diaphragm pump in FIG. 1 according to some embodiments of the present invention;

FIG. 3 is another side view of the diaphragm pump shown in FIG. 1 from the other side according to some embodiments of the present invention;

FIG. 4 is a front view of the diaphragm pump shown in FIG. 1 according to some embodiments of the present invention;

FIG. 5 is a back view of the diaphragm pump shown in FIG. 1 according to some embodiments of the present invention;

FIG. 6 is a top view of the diaphragm pump shown in FIG. 1 according to some embodiments of the present invention; and,

FIG. 7 is a bottom view of the diaphragm pump shown in FIG. 1 according to some embodiments of the present invention.

The broken line showing in FIGS. 1 and 4 is included for the purpose of illustrating environmental matter and forms no part of the claimed design. 

We claim the ornamental design of a diaphragm pump, as shown and described herein. 